# Water wells in Knox County, Texas — how deep, and through what

> 837 well reports filed in Knox County since 2001. Median depth 55 ft, water struck at 32 ft, median yield 50 gpm.

## Water wells in Knox County, Texas

**837** well reports on file. The median well here was taken to **55 ft** and struck water at **32 ft** — against 180 ft and 80 ft across Texas.

### What you will drill through in Knox County

*Logged in Knox County, by depth. The figure is how many wells hit it.*

| Depth, ft | What was logged there |
|---|---|
| 0–25 ft | **White Sandy Clay** 159 , **Red Sandy Clay** 143 , **Top Soil** 131 , **Red Clay** 83 , **Caliche** 79 , **Brown Clay** 77 |
| 25–50 ft | **Red Bed** 99 , **Coarse H2O Sand** 86 , **Red Bed & Blue Shale** 81 , **Good Gravel** 62 , **Red Bed & Blue Shell** 50 , **Red Clay** 46 |
| 50–100 ft | **Red Bed** 87 , **Red Bed & Blue Shale** 56 , **Red Clay** 20 , **Red Bed & Blue Shell** 25 , **Good Gravel** 16 , **Red Bed And Blue Shale** 11 |

The rock column here is what drillers wrote down, layer by layer, in their own words — 5,345,462 layers across 707,856 wells. It is not a geological survey: two drillers may call the same clay by two names, and this site does not correct them.

### Who drills in Knox County

*Licensed firms in Knox County, busiest first.*

| Firm of record | Wells | Median depth, ft | Median yield, gpm | Years |
|---|---|---|---|---|
| [LEONARD DRILLING LLC](/driller/leonard-drilling-llc.md) | 532 | 60 | 75 | 2003–2026 |
| [Gillispie Drilling](/driller/gillispie-drilling.md) | 38 | 46 | 10 | 2005–2026 |
| [Talon Drilling, LP](/driller/talon-drilling-lp.md) | 36 | 8 | — | 2002–2010 |
| [JB Drilling](/driller/jb-drilling.md) | 26 | 50 | — | 2022–2024 |
| [E&C DRILLING CO.](/driller/e-c-drilling-co.md) | 21 | 39 | 10 | 2008–2017 |
| [Subterra Environmental Services, LLC.](/driller/subterra-environmental-services-llc.md) | 15 | 35 | — | 2019–2021 |
| [White Drilling Company, Inc.](/driller/white-drilling-company-inc.md) | 9 | 30 | — | 2001–2016 |
| [Talon/LPE](/driller/talon-lpe.md) | 9 | 6 | — | 2010 |
| [Sunbelt Industrial Services](/driller/sunbelt-industrial-services.md) | 8 | 35 | — | 2014 |
| [LEONARD WATER SERVICES](/driller/leonard-water-services.md) | 7 | 64 | 105 | 2010–2022 |
| [Peterson Drilling & Testing, Inc.](/driller/peterson-drilling-testing-inc.md) | 7 | — | — | 2003–2013 |
| [Pacific West Environmental and Infrastructure](/driller/pacific-west-environmental-and-infrastructure.md) | 6 | 45 | — | 2025 |
| Leonard Driling LLC | 5 | 56 | 14 | 2005–2010 |
| [Pacific West](/driller/pacific-west.md) | 4 | 45 | — | 2024 |
| [Roddy Qualls Environmental Drilling](/driller/roddy-qualls-environmental-drilling.md) | 4 | 50 | — | 2022 |
| [WEST Drilling](/driller/west-drilling.md) | 4 | 50 | — | 2018 |
| [Harrison and Cooper, Inc.](/driller/harrison-and-cooper-inc.md) | 4 | 30 | — | 2017 |
| [Straub Corporation](/driller/straub-corporation.md) | 4 | 15 | — | 2016 |
| [Water Well Drilling and Service](/driller/water-well-drilling-and-service.md) | 4 | 75 | — | 2014 |
| [Groundwater Monitoring Inc.](/driller/groundwater-monitoring-inc.md) | 4 | 20 | — | 2006–2008 |
| [Eagle Remediation](/driller/eagle-remediation.md) | 3 | 45 | — | 2023 |
| Leonard Dirlling LLC | 3 | 68 | 370 | 2010 |
| [dba Universal Drilling Services](/driller/dba-universal-drilling-services.md) | 3 | 25 | — | 2003–2005 |
| [O'Neal Well Service](/driller/o-neal-well-service.md) | 2 | 100 | 8 | 2014 |
| [Vortex Drilling, Inc.](/driller/vortex-drilling-inc.md) | 2 | — | — | 2012 |

### What the wells are for

*Purpose, and how deep each went.*

| Purpose | Wells | Share | Median depth, ft |
|---|---|---|---|
| Irrigation | 304 | 36.3% | 62 |
| Domestic | 200 | 23.9% | 52 |
| Stock | 181 | 21.6% | 52 |
| Monitor | 101 | 12.1% | 35 |
| Environmental Soil Boring | 26 | 3.1% | 8 |
| Test Well | 11 | 1.3% | 80 |
| Public Supply | 7 | 0.8% | 72 |
| Rig Supply | 3 | 0.4% | 52 |

*By decade drilled.*

| Decade | Reports | Median depth, ft | Water at, ft |
|---|---|---|---|
| 2000s | 211 | 57 | 32 |
| 2010s | 425 | 55 | 32 |
| 2020s | 201 | 53 | 29 |

### The deepest reports on file

*Deepest reports in Knox County. Column one is the tracking number.*

| Report | Year | Depth, ft | Water at, ft | Yield, gpm | Purpose |
|---|---|---|---|---|---|
| 552953 | 2020 | 2,160 | 47 | 140 | Irrigation |
| 557840 | 2020 | 766 | 30 | 375 | Irrigation |
| 563648 | 2021 | 170 | — | — | Test Well |
| 377300 | 2014 | 122 | 8 | 2 | Stock |
| 701850 | 2025 | 120 | — | — | Test Well |
| 725824 | 2026 | 110 | — | — | Test Well |
| 473353 | 2017 | 110 | 56 | — | Stock |
| 711916 | 2025 | 100 | — | — | Test Well |
| 711915 | 2025 | 100 | — | — | Test Well |
| 355463 | 2014 | 100 | 0 | — | Stock |

Every figure on this site is a **median**, never an average. On reported yield the average is twice the median, because a handful of entries are typing errors — the largest reads 2,200,100 gallons per minute against 30,078 for the next one. Yields above 3,000 gpm (136 wells, 0.045%) and depths beyond 5,000 ft (103 wells, 0.016%) are kept in the file, marked, and left out of the medians.

### Drilling a well in Knox County?

Depth is only half the quote. What it costs depends on the rock, the casing and the pump. Tell us where and we pass the request to licensed Texas drillers.

We are nobody's agent and have no arrangement with any firm today. [What we do with this](/privacy.md).

### Counties with a comparable number of reports

- [San Saba](/county/san-saba.md)
- [Lipscomb](/county/lipscomb.md)
- [Coryell](/county/coryell.md)
- [Young](/county/young.md)
- [Brewster](/county/brewster.md)
- [Hill](/county/hill.md)
- [Menard](/county/menard.md)
- [Wilbarger](/county/wilbarger.md)
- [Real](/county/real.md)
- [Sutton](/county/sutton.md)
- [Roberts](/county/roberts.md)
- [Fannin](/county/fannin.md)
- [Crane](/county/crane.md)

A sliding window, not a ranking. [Every county](/county.md).

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Página: https://texas-water-wells.pages.dev/county/knox/
Fonte: Texas Submitted Driller's Report Database — Texas Water Development Board, from reports filed with the Texas Department of Licensing and Regulation
Recolha: 2026-08-23